Quantum computing works by performing calculations thousands of times faster than modern supercomputers while consuming orders of magnitude less electricity. What is wrong with Quantum Computing
Quantum computers are different from classical computers at its most basic level. While traditional computers rely on alternative bit states of 1 and 0 for data storage , quantum computers exploit the shod
dy effects of quantum mechanics , so that its " quantum bits " that exist as a 1, 0, or both at once, also called " superposition . "
So while a traditional computer will in turn examine possible solutions to a mathematical optimization problem , looks kvantsystemetvid each potential solution at the same time , so-called quantum annealing, and returns the response to not only the solution but also nearly 10,000 comparable options simultaneously in about a second. But because each qubit only communicates seven other qubits in densely packed blocks or nodes , those nodes are then connected to other 8 qubit nodes in a lattice. Unlike traditional computers that are dependent logic gates for manipulating bits , using quantum computer system an adiabatic , which reads the ground state by their quantum bits to find a solution. " The 128 - qubit array of DW1 "
When the original D -Wave One ( DW1 ) debuted in May 2011 , it used a 128 qubit chip -set, magnitudes faster than existing supercomputing technology, and was immediately bought by research labs and defense contractors such as Lockheed , which was installed at USC in LA . But the recently released D -Wave Two ( DW2 )
Blowing its predecessor from the water using a pneumatic qubit array 512 . Quantum D- Wave 2 is 3600 times faster than a super computer
Each qubit is a small, superconducting processor that uses quantum effects . These effects are magnified the more qubits that are connected to one another . Even when DW2 uses only 439 qubits , as it did when the D- Wave Systems Consultant, Catherine McGeoch , tested it against state of the art workstations running top of the line CPLEX optimization algorithms , produced DW2 results 3600 times faster , providing 100 solutions in half a second. Workstations required a half hour to produce the same. But to take full advantage of quantum effects requires DW2 very special, extreme conditions. For one , it operates at 0.02 Kelvin , 150 times colder than the depths of interstellar space and only two degrees above absolute zero in a vacuum 10 billion times less than standard atmospheric pressure and experience 50,000 times less magnetic interference due to its heavy shielding. Surprisingly , achieve these temperatures only consumes 15.5kW and takes only ten square meters of floor space compared to the thousands of kilowatts and layers of space to traditional supercomputers require . What is a qubit
